Interlocking anvil and swage block.



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J. W. GDYLB & D. E. LYNCH. INTERLOGKING ANVIL AND SWAGE BLOCK,

APPLICATION FILED DEC. 12, 1911.

' 1,037,- 2 O9. Pa ented Sept. 3, 1912.

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[NVE/VTORS J. W. GOYLE & D. E. LYNCH. INTERLOGKING ANVIL AND SWAGE BLOCK.

' PPPPPPPPPPPPPPPPPPPPPPPPP 1. 1,037,209. Patented Sept. 3, 1912.

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- terlocking anvil and swage blocks therefor.

NITED STATES PATENT OFFICE.

JAMES WESLEY COYLE, 0F CARTERVILLE, AND DANIEL EIVIMET'I LYNCH, OF WEBB CITY, MISSOURI, ASSIGNORS OF ONE-HALF TO W. A. GRISTY, 0F JOPLIN', MISSOURI.

INTERLOCKING ANVIL AND SWAGE BLOCK.

Specification of Letters Patent.

Application filed December 12, 1911.

Patented Sept. 3, 1912.

Serial No. 665,358.

To all whom it may concern:

Be it known that we, JAMES VVnsLnY Conn and DANIEL E. LYNCH, citizens of the United States, residing at Carterville and Webb City, respectively, in the county of Jasper and State of Missouri, have invented certain new and useful Improve ments in Interlocking Anvil and Swage Blocks; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to drill sharpening machines and more particularly to in- An object of the invention is to interlocking anvil and swage blocks.

Another object is to provide an anvil block with an interrupted dove-tailed groove in its upper face to receive a correspondingly formed rib carried upon the under face of a swage block, and a wedge key for locking said blocks together.

Another object is to provide interlocking anvil and swage blocks of the above stated character which are adapted for employment upon certain types of drill sharpening machines.

Another object is to generally improve the construction of this type of anvil and swage blocks.

Other objects and advantages-will be hereinafter set forth and pointed out in the specification and claims.

In the accompanying drawings which are made a part of this application, Figure 1, is a perspective view of the blocks in interprovide locked engagement with one another, also.

showing the drill in one position upon the swage block. Fig. 2, is a perspective view of the anvil block alone, showing the inter-' rupted dove-tailed groove in the upper face thereof. Fig. 3, is a vertical longitudinal section through the blocks and tool, taken on the line 33 of Fig. 4, and, Fig. 4:, is a vertical cross sectional view, taken on the line 4ct, Fig. 8.

Referring more particularly to the draw ings in which similar reference numerals designate corresponding parts throughout the several views, 1 represents the anvil block which preferably has its upper side edges 2 beveled. The side edges of the block are provided with suitable grooves 3' to receive track rails (not shown), between the side plates of the framework of a drill sharpening machine. The front and rear edges of the anvil block may also be provided with grooves 4 similar to the grooves 3 and the block 1 may be mounted in any preferred manner between the side plates of the machine framework and may be adjustably secured, as desired.

The block 1 is divided in its upper face with the interlocking dovetailed groove 5 extending in a longitudinal direction. The dove-tail groove 5 is formed by the oppositely beveled walls 6 and 7, the wall 7 extending the full length of the block, while the wall 6 is stopped short of the rear end of the block by means of the stop 8 at the rear end of the groove 5, one edge 9 of said stop facing the wall 7 and being positioned a slight distance from-the latter and beveled in the same direction as the wall 6 and at a degree corresponding to that at which the wall 7 is beveled. It will be understood that the wall 6 may be beveled at an angle corresponding to that of the wall 7 or at a different angle as desired. The wall 10 of the stop 8, connecting the wall 9 of said stop and the wall 6 of the groove 5, is vertical and at right angles to said walls 9 and 6., The Wall 10 forms the front wall of the stop and its purpose will be later fully stated.

The swage block 11 is adapted to rest upon the upper face of the anvil block 1 and carries upon its under face the dove-tailed longitudinally extending rib 12 which is adapted for engagement within the groove 5 in the upper face of the anvil block 1. The rib 12 stops short of the rear end of the swage block 11 and the rear end 13 of said rib is vertical and adapted for engagement against the vertical front wall 10 ofthe stop 8 to stop or limit the rearward movement of the rib 12 within the groove 5. The opposite edges 14 and 15 of the rib 12 are beveled to correspond with the beveled walls 6 and 7, respectively, of the groove 5 and the edge 14: of said rib 12 is adapted for engagement against the wall 6. Owing to the fact, however, that the rib 12 is narrower than the groove 5, the opposite edge 15 of said rib is spaced from the wall 7 and substantially in alinement with the wall 9 of the stop 8 when the edge 14 of the rib 12 is in engagement with the wall 6. This leaves a space between the wall 7 of the groove 5 and the wall 9 of the stop 8, and between the wall 15 of the rib 12 and the wall 7. A wedge locking key 16 is then forced between the walls 7 and 15 to tighten the swage block 11 upon the anvil block 1 and prevent disengagement of the rib 12 from the groove 5. It will be notedthat thefront end of the swage block 11 projects slightly beyond the front edge of the anvil block 1 and the lower corner 17, adjacent the side edge 14 of the rib .12, engages against the front face of the anvil block 1,.adjacent the wall 6 of said block when the swage block is in position upon the anvil block 1 and the rear wall'l3 of the rib 12 is engaged against the wall 10 of the stop 8. Thus it will be seen that a double stop is provided for limiting the rearward movement of the rib 12 within the groove 5.

The form of the upperface of the swage block 11 may be varied asdesired, but we prefer to bevel the forward portion 18 there of andprovide the same with a rearwardly extending channel 19 of semi-circular form in cross section to receive one edge ofa drill or other tool 20 for certain swaging operations. Upon the rear portion of the block 11 we provide the parallel spaced tool supporting members 21 adapted to support and hold the shank 22 of the tool 20 therebetween. The forward ends of the members 21 are out under, as shown at 23, to cause the formation of the rounded shoulders 24: of the tool 20 upon the proper application of strokes upon the tool by the swaging or pounding hammer (not shown).

It will be seen by referring to Fig. 1, just how the tool supporting members 21 serve to hold the tool 20 in position upon the swage block 11 and also the manner in whichthe out under ends 23 of said members serve to produce the shoulders '24 of'the tool 20.

It will be evident that the upper face of theswage block 11 maybe varied if desired or that a number of such blocks may be employed and each adapted to be secured in position upon the anvil block 1, as described.

hen it is desired to round the opposite edges of the tool 20, the same is moved forward and placed'at'right angles to the posi- 'swage blocks and that the wedge key 16 may be readily withdrawnwhen it is desired to remove the swage block to replace the same with a different block or for any purpose desired.

What we claim is:

1. A device of the class described comprising an anvil block having an interrupted dovetail groove in its upper face extending from one edge of said block to the opposite edge thereof, said groove being interrupted at oneend by a stop member positioned in said groove, 21 swage block having a dovetailed rib upon its under face, said rib stopping short at one end of the swage block, the rib being adapted for engagement with the interrupted groove of the anvil block, theendof the rib being adapted for engagement against the stop member, and a key for locking the rib in the groove.

2. The combination with an anvil block having a groove across its upper face and a stop member positioned in one side of the groove and at one end thereof; of a swage block having a rib upon its under face for engagement Within the groove and against a the stop member, andlocking means for engagement in the groove .to one side of the rib and the stop member and against the same for locking the parts together.

In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

JAMES WESLEY COYLE. DANIEL EMMETT LYNCH.

Witnesses:

H. E..E{[OODY, F. P. BLAIR.

Copies of this patent maybe obtained for five cents each, by'addressing the Commissioner of' ratents,

Washington, 13.0. e 

